TRV can refer to:
- Technical remote viewing
- Thermostatic radiator valve
- Transient recovery voltage
- The IATA airport code for Trivandrum International Airport
- Tobacco rattle virus
- Toxicity reference value
- The Travelers Companies; New York Stock Exchange symbol TRV
- /trv/, the travel discussion board on 4chan
- Trenner Verzeichnis (written “TrV”), a catalogue for the works of Richard Strauss, created by Franz Trenner